Wildlife biologists in Yellowstone National Park will introduce a fish toxin next week into Elk Creek to remove the non-native brook trout as part of Yellowstone’s Native Fish Conservation Plan and Environmental Assessment, which was approved in May 2011.
Park officials said the project will not impact the nearby Yellowstone River, and is designed to affect Elk Creek and its tributaries, including Lost and Yancey creeks near Tower Junction in the Yellowstone River drainage.